They found that kids who had been exposed to more screens at 12 months (but NOT 18) had a tiny increase in their average autism-symptom scorepic.twitter.com/5ov8fiIGin
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It's essentially an ordinal outcome - an ordered scale from 0-20 indicating autism risk - and without any transformations (which were not reported) it's unlikely that the linear model used was appropriate for this analysis
It's also worth remembering that this study DIDN'T LOOK AT FORMAL AUTISM DIAGNOSIS Even the more clinically useful variable was yes/no on a relatively arbitrary scale of autism risk
The only real take-home from this study is that the children of parents who report that they watch more TV/DVD may have a tiny increase in their risk of autism-like symptoms but who knows because the stats were a bit dodgy anyway
TL:DR - study wasn't great - didn't show that screens cause autism - barely even showed an association - don't worry about screens and your kids too much, there's a pandemic on
If the reported coefficient was expressed as a %, they probably log-transformed, no?
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